code: def test_synchronize():
      ctx = chainerx.get_global_default_context()
      device = ctx.get_device("native", 0)
      device.synchronize()
  
file_path: chainer/tests/chainerx_tests/unit_tests/test_device.py
imports: import copy
  import pickle
  import pytest
  import chainerx
label_desc: Use image node_id 7 for calling a global function with example usage: test_synchronize() without return types